433 lines
14 KiB
Dart
433 lines
14 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_animate/flutter_animate.dart';
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import 'package:cloud_firestore/cloud_firestore.dart';
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import '../../../../core/services/gamification_service.dart';
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import '../../../../core/models/class_stats.dart';
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import '../../../../core/theme/app_theme_extension.dart';
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/// Widget displaying student ranking for a specific class
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class ClassRankingWidget extends StatefulWidget {
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final String classId;
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const ClassRankingWidget({
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super.key,
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required this.classId,
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});
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@override
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State<ClassRankingWidget> createState() => _ClassRankingWidgetState();
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}
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class _ClassRankingWidgetState extends State<ClassRankingWidget> {
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List<StudentRanking> _rankings = [];
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ClassStats? _classStats;
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bool _loading = true;
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String _searchQuery = '';
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@override
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void initState() {
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super.initState();
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_loadRankingData();
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}
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Future<void> _loadRankingData() async {
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try {
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final results = await Future.wait([
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GamificationService.getClassRanking(widget.classId),
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GamificationService.getClassStats(widget.classId),
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]);
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final rankings = results[0] as List<StudentRanking>;
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final classStats = results[1] as ClassStats?;
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if (mounted) {
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setState(() {
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_rankings = rankings;
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_classStats = classStats;
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_loading = false;
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});
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}
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} catch (e) {
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print('Error loading ranking data: $e');
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if (mounted) {
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setState(() {
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_loading = false;
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});
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}
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}
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}
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List<StudentRanking> get _filteredRankings {
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if (_searchQuery.isEmpty) return _rankings;
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return _rankings.where((student) =>
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student.studentName.toLowerCase().contains(_searchQuery.toLowerCase()) ||
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student.studentEmail.toLowerCase().contains(_searchQuery.toLowerCase())
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).toList();
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}
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@override
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Widget build(BuildContext context) {
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final cs = Theme.of(context).colorScheme;
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if (_loading) {
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return const Center(
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child: CircularProgressIndicator(color: Colors.white),
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);
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}
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return Container(
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margin: const EdgeInsets.all(24),
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child: Column(
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children: [
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// Header with class info
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Container(
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padding: const EdgeInsets.all(20),
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decoration: BoxDecoration(
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gradient: LinearGradient(
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colors: [cs.primary, cs.primary.withValues(alpha: 0.8)],
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),
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borderRadius: BorderRadius.circular(16),
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),
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child: Column(
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children: [
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Row(
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children: [
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Expanded(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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_classStats?.className ?? 'Carregando...',
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style: const TextStyle(
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color: Colors.white,
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fontSize: 20,
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fontWeight: FontWeight.bold,
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),
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),
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const SizedBox(height: 4),
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Text(
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'${_rankings.length} alunos • Progresso médio: ${((_classStats?.averageProgress ?? 0) * 100).toInt()}%',
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style: TextStyle(
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color: Colors.white.withValues(alpha: 0.8),
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fontSize: 14,
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),
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),
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],
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),
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),
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Container(
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padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 6),
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decoration: BoxDecoration(
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color: Colors.white.withValues(alpha: 0.2),
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borderRadius: BorderRadius.circular(16),
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),
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child: Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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const Icon(Icons.leaderboard, color: Colors.white, size: 16),
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const SizedBox(width: 4),
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Text(
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'Ranking',
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style: const TextStyle(
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color: Colors.white,
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fontSize: 12,
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fontWeight: FontWeight.bold,
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),
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),
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],
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),
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),
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],
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),
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],
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),
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),
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const SizedBox(height: 20),
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// Search bar
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Container(
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padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
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decoration: BoxDecoration(
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color: Colors.white.withValues(alpha: 0.1),
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borderRadius: BorderRadius.circular(12),
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border: Border.all(color: Colors.white.withValues(alpha: 0.2)),
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),
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child: Row(
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children: [
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Icon(Icons.search, color: Colors.white.withValues(alpha: 0.7)),
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const SizedBox(width: 12),
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Expanded(
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child: TextField(
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onChanged: (value) {
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setState(() {
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_searchQuery = value;
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});
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},
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style: const TextStyle(color: Colors.white),
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decoration: InputDecoration(
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hintText: 'Buscar aluno...',
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hintStyle: TextStyle(
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color: Colors.white.withValues(alpha: 0.5),
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),
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border: InputBorder.none,
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),
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),
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),
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if (_searchQuery.isNotEmpty)
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IconButton(
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icon: Icon(Icons.clear, color: Colors.white.withValues(alpha: 0.7)),
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onPressed: () {
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setState(() {
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_searchQuery = '';
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});
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},
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),
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],
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),
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),
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const SizedBox(height: 20),
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// Ranking list
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Expanded(
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child: _filteredRankings.isEmpty
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? _buildEmptyState()
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: ListView.builder(
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padding: EdgeInsets.zero,
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itemCount: _filteredRankings.length,
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itemBuilder: (context, index) {
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final student = _filteredRankings[index];
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final rankPosition = _rankings.indexOf(student) + 1;
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return Padding(
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padding: const EdgeInsets.only(bottom: 12),
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child: _buildStudentRankingCard(student, rankPosition),
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);
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},
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),
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),
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],
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),
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);
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}
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Widget _buildEmptyState() {
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if (_searchQuery.isNotEmpty) {
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return Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Icon(
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Icons.search_off,
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size: 64,
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color: Colors.white.withValues(alpha: 0.5),
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),
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const SizedBox(height: 16),
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Text(
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'Nenhum aluno encontrado',
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style: TextStyle(
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color: Colors.white.withValues(alpha: 0.7),
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fontSize: 18,
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),
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),
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const SizedBox(height: 8),
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Text(
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'Tente buscar com outros termos',
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style: TextStyle(
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color: Colors.white.withValues(alpha: 0.5),
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fontSize: 14,
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),
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),
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],
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),
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);
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}
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return Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Icon(
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Icons.people_outline,
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size: 64,
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color: Colors.white.withValues(alpha: 0.5),
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),
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const SizedBox(height: 16),
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Text(
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'Nenhum aluno na turma',
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style: TextStyle(
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color: Colors.white.withValues(alpha: 0.7),
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fontSize: 18,
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),
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),
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const SizedBox(height: 8),
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Text(
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'Os alunos aparecerão aqui quando se matricularem',
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style: TextStyle(
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color: Colors.white.withValues(alpha: 0.5),
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fontSize: 14,
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),
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),
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],
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),
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);
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}
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Widget _buildStudentRankingCard(StudentRanking student, int rankPosition) {
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final cs = Theme.of(context).colorScheme;
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// Determinar cor baseada na posição
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Color rankColor;
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IconData rankIcon;
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if (rankPosition == 1) {
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rankColor = Colors.amber;
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rankIcon = Icons.emoji_events;
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} else if (rankPosition == 2) {
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rankColor = Colors.grey.withValues(alpha: 0.8);
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rankIcon = Icons.workspace_premium;
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} else if (rankPosition == 3) {
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rankColor = Colors.brown.withValues(alpha: 0.8);
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rankIcon = Icons.military_tech;
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} else {
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rankColor = Colors.white.withValues(alpha: 0.7);
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rankIcon = Icons.numbers;
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}
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return Container(
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padding: const EdgeInsets.all(16),
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decoration: BoxDecoration(
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color: Colors.white.withValues(alpha: 0.1),
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borderRadius: BorderRadius.circular(16),
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border: Border.all(color: Colors.white.withValues(alpha: 0.2)),
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),
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child: Row(
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children: [
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// Rank position
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Container(
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width: 40,
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height: 40,
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decoration: BoxDecoration(
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color: rankColor.withValues(alpha: 0.2),
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borderRadius: BorderRadius.circular(20),
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border: Border.all(color: rankColor.withValues(alpha: 0.5)),
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),
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child: Center(
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child: rankPosition <= 3
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? Icon(rankIcon, color: rankColor, size: 20)
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: Text(
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'$rankPosition',
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style: TextStyle(
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color: rankColor,
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fontSize: 14,
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fontWeight: FontWeight.bold,
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),
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),
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),
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),
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const SizedBox(width: 16),
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// Student info
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Expanded(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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student.studentName,
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style: const TextStyle(
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color: Colors.white,
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fontSize: 16,
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fontWeight: FontWeight.bold,
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),
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),
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const SizedBox(height: 2),
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Text(
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student.studentEmail,
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style: TextStyle(
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color: Colors.white.withValues(alpha: 0.7),
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fontSize: 12,
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),
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),
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],
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),
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),
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// Stats
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Column(
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crossAxisAlignment: CrossAxisAlignment.end,
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children: [
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// Overall score
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Container(
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padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
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decoration: BoxDecoration(
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color: _getScoreColor(student.overallScore).withValues(alpha: 0.2),
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borderRadius: BorderRadius.circular(8),
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),
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child: Text(
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'${student.overallScore.toInt()}%',
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style: TextStyle(
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color: _getScoreColor(student.overallScore),
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fontSize: 12,
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fontWeight: FontWeight.bold,
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),
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),
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),
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const SizedBox(height: 4),
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// Quiz completion
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Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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Icon(
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Icons.quiz,
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color: Colors.white.withValues(alpha: 0.7),
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size: 12,
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),
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const SizedBox(width: 4),
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Text(
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'${student.completedQuizzes}/${student.totalQuizzes}',
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style: TextStyle(
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color: Colors.white.withValues(alpha: 0.7),
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fontSize: 11,
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),
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),
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],
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),
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const SizedBox(height: 2),
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// Streak
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if (student.currentStreak > 0)
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Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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Icon(
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Icons.local_fire_department,
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color: Colors.orange.withValues(alpha: 0.8),
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size: 12,
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),
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const SizedBox(width: 4),
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Text(
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'${student.currentStreak}d',
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style: TextStyle(
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color: Colors.orange.withValues(alpha: 0.8),
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fontSize: 11,
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),
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),
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],
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],
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),
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],
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),
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).animate().slideX(duration: 300.ms, curve: Curves.easeOut);
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}
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Color _getScoreColor(double score) {
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if (score >= 80) return Colors.green;
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if (score >= 60) return Colors.blue;
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if (score >= 40) return Colors.orange;
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return Colors.red;
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}
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}
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